Member postings for RK 2014

As promised below are few photos of tumbler gear manufacturing. The steel used for the wheels, shafts and spindle is 16MnCr5. They were cemented and hardened. The gear housing is from standard weldable steel. After welding the housing was machined on the lathe and the holes drilled and reamed on the milling machine to assure parallelism and the right distances in x and y axis.

Similarly I machined the holder, it is welded from three parts and finished on my lathe using face plate. All bushes are bronze, reamed after their pressing in to the holes.

Many thanks to Phil and Mike for their photos of the original tumbler gear parts! It helped me a lot.

The housing has been made of 7mm steel plates and two flanges. All together it is welded and later on machined. The small bores were reinforced to accommodate the inserts and keep the shafts.

I can send you photos of the original tumbler gear by e-mail.

Hi Robert, yes, I have few pictures of the missing tumbler gears which I have machined. Describe more your situation and needs, maybe I could help you. It is still in progress, once I will complete it I will share more pictures. Now two examples at least.

Hi Phil, hi Mike,

thank you both for your help and for the photos of the missing tumbler gear! I believe it will be possible to fabricate a replacement.

Roman

Hi Phil,

my idea is to make a functional replacement if the original tumpler gear, not identical copy as for it it is a casting necessary. It should be a case consisted of be two side steel panels holding the bearings of the plugs of the gearwheels. I can perform milling, turning, welding but not casting.

Could you make a photo of the tumpler gear of your Boley and send it to me via e-mail ([email protected]), please?

Thanks,
Roman

Hi guys,

I also have Boley 5LZ, which I bought recently and I am restoring it now. Could someone of you help me please to get the main dimensions of the tumpler gear, which is misssing on my lathe? I intend to manufacture a replacement of it. Also a photo could be also helpful.

Thank you,

Roman